DE102016120252A1 - Fadenpaketabstützungsvorrichtung, elastic joint disc and a method for producing an elastic joint disc - Google Patents

Abstract

The present invention relates to a Fadenpaketabstützungsvorrichtung (12) for supporting a wound with a thread package of thread for a flexible joint disc for connecting two shaft sections, the thread package has two opposing arcuate thread portions and two arcuate thread portions interconnecting and parallel tangential thread portions, wherein the Fadenpaketabstützungsvorrichtung ( 12) has a first deflection section (18) and a second deflection section (20) about which a respective arcuate thread region of the thread package (34) is guided, wherein the two deflection sections (18, 20) are integrally connected to one another via a web (22) , Furthermore, the invention relates to an elastic joint disc and a method for producing an elastic joint disc.

Description

The present invention relates to a Fadenpaketabstützungsvorrichtung for supporting a wound with a thread package of thread for a flexible joint disc for connecting two shaft sections, wherein the thread package has two opposite arcuate thread areas and two arcuate thread areas interconnecting and parallel tangential thread areas. Furthermore, the invention relates to an elastic joint disc for connecting two shaft sections and to methods for producing an elastic joint disc for connecting two shaft sections.

An elastic joint disc of the type mentioned, which can also be referred to as elastic torsional coupling, NRG Disc® or Hardyscheibe, is used for connecting two shaft sections of a propeller shaft, in particular a propeller shaft. The flexible disc compensates for slight displacements of the two shafts and at the same time dampens torque shocks resulting from a speed change of the propeller shaft or the start of the propeller shaft.

A conventional elastic flexible disc comprises a plurality of bushes, loop or thread packages and an elastomeric body in which the bushes and thread packages are at least partially embedded. About the bushes, the joint disc is connected to the shaft sections of the propeller shaft.

To produce a flexible disc, two bushings are positioned adjacent to each other and wrapped with a thread. The filament bundles formed together with bushings can then be embedded either in total in an elastic body, or each of the filament bundles together with socket is encased by an elastic body, and then the sheathed filament bundles are connected together.

So revealed DE 10 2008 047 596 A1 an elastic flexible disc comprising a plurality of bushes, a plurality of loop packs, each loop pack wrapping around each two adjacent bushings and each bush being looped around at least two loop packs, a support means arranged on the bushings for axially guiding the plurality of loop packs, and a rubber-elastic casing; in which the loop packages, the support means and the jacks are at least partially embedded.

Further, go out DE 10 2011 121 472 A1 an elastic flexible disc, which is formed from a plurality of inlays, each inlay having at least two tubular bushings, at least one oval shaped, wrapped around the bushes thread package and at least one elastomeric body in which the inlay is embedded. The inlays are then connected to a flexible disc.

The present invention has for its object to provide a Fadenpaketabstützungsvorrichtung, an elastic joint disc and a method for producing a flexible joint disc, which allow a simpler and thus more cost-effective production and continuous yarn stabilization.

To solve the problem, a Fadenpaketabstützungsvorrichtung with the features of claim 1, an elastic joint disc having the features of claim 11 and a method for producing an elastic joint disc having the features of claim 12 or 13 is proposed.

Advantageous embodiments of the Fadenpaketabstützungsvorrichtung and the method for producing an elastic joint disc are the subject of the respective dependent claims.

According to one aspect, a Fadenpaketabstützungsvorrichtung is proposed for supporting a wound with a thread package of thread for a flexible joint disc for connecting two shaft sections, wherein the thread package has two opposite arcuate thread areas and two arcuate thread areas interconnecting and parallel tangential thread areas. The Fadenpaketabstützungsvorrichtung has a first deflecting portion and a second deflecting portion about which a respective arcuate thread portion of the thread package is guided, wherein the two deflecting sections are integrally connected to each other via a web.

Due to the one-piece or one-piece the Fadenpaketabstützungsvorrichtung is dimensionally stable. As a result, the thread is always biased during winding on the Fadenpaketabstützungsvorrichtung. Thus, a continuous tightening and relaxing the thread or the thread package in further process steps eliminated. In addition, it is possible by the one-piece to wrap directly on the Fadenpaketabstützungsvorrichtung. In addition, the feeding of the Fadenpaketabstützungsvorrichtung is facilitated in a winding machine by the one-piece. Consequently, the setting and monitoring effort for the winding machine is reduced, so that the complexity of production is simplified. Furthermore, the one-piece construction of the Fadenpaketabstützungsvorrichtung allows the use of simple and thus less expensive holding devices and tools during the process chain, so that the machine investment and the article-specific costs are reduced. As a result, economical production is possible even with small quantities.

In an advantageous embodiment, the web is separable from the deflection sections. By separating the web, the two deflecting sections can move relative to each other so as to allow the required for the vibration isolation and the acoustic decoupling of the two shaft sections elasticity. In particular, the web is separated from the deflection sections when the thread package is completely wound onto the thread package support device, or when the wound package is partially encased by an elastomer body.

Each of the deflection sections may have at least one support region for supporting the thread support device for separating the web. The support area ensures a process-reliable punching of the web.

In an advantageous embodiment, each of the deflection sections on two opposite collar portions which receive the thread package between them and axially supported. The collar portions prevent slippage of the thread package from the Fadenpaketabstützungsvorrichtung before it is provided with an elastic sheath. In addition, the collar sections ensure support of the thread package under heavy loads during operation.

In an advantageous embodiment, a distance between the opposite collar sections in the region of a tangential thread guide widens steadily. Advantageously, a distance between the opposite collar sections in the tangential thread guide areas widens steadily. This allows the thread package realize high bending angle. In particular, the collar sections have a funnel-shaped opening angle in the tangential thread guide regions. Advantageously, the distance between the opposite collar sections in the arcuate thread guide areas is constant. As a result, the thread package in its arcuate thread areas on a parallel thread guide, whereby the free thread length is increased.

In an advantageous embodiment, each deflection section has an arcuate thread guide region, around which an arcuate thread region is guided, and two tangential thread guide regions, wherein a portion of a tangential thread region leads to each of the tangential thread guide regions.

Each of the turning portions may have a through hole for press-fitting a bush and a bead portion for bonding the web. The bridge is in one piece and of the same material connected to the bead sections. In particular, the web has a smaller vertical extent than the two bead portions. As a result, the bridge can be easily separated from the two bead sections. In addition, the two bead portions serve as a stop when the web is separated. Thus, the bead portions act in strong deflection movements as an integrated overload protection. About the shape of Wulstabschnitte the deflection movement can be adjusted. Advantageously, the bead portions on a large contact surface. Each of the bead portions may have a support portion for supporting the Fadenpaketabstützungsvorrichtung for separating the web.

The Fadenpaketabstützungsvorrichtung may comprise an elastomeric body which partially covers the Fadenpaketabstützungsvorrichtung. Since the Fadenpaketabstützungsvorrichtung is formed in one piece or in one piece, a small amount of elastomer is required for sheathing. In addition, the number of cavities in the injection mold can be increased because the one-piece design allows improved utilization of the injection mold surface. Due to the lower amount of elastomer, the buoyancy surface in the injection molding tool and, concomitantly, the buoyancy force is reduced. In addition, no functionally irrelevant elastomer is present, so that the heating time can be shortened.

In an advantageous embodiment, the deflection sections and the web are produced in one piece by injection molding. This allows a simple and inexpensive production of Fadenpaketabstützungsvorrichtung.

The two deflection sections and the web can be made of a plastic, in particular a fiber-reinforced plastic. As a result, the Fadenpaketabstützungsvorrichtung on a low weight. According to a further aspect, an elastic joint disc for connecting two shaft sections is proposed. The flexible disc comprises a plurality of Fadenpaketabstützungsvorrichtungen, a plurality of thread packages and a plurality of sockets, wherein each thread package wraps around a Fadenpaketabstützungsvorrichtung, wherein each wrapped with a thread package Fadenpaketabstützungsvorrichtung is at least partially surrounded by an elastomeric body, and wherein in each case a socket two Fadenpaketabstützungsvorrichtungen together , Due to the integral nature of the Fadenpaketabstützungsvorrichtung is dimensionally stable. As a result, the thread is always biased during winding on the Fadenpaketabstützungsvorrichtung. Thus, a continuous tensioning and relaxing of the thread or the thread package during the respective process steps is eliminated. Moreover, it is possible to wind directly on the Fadenpaketabstützungsvorrichtung. In addition, the supply of Fadenpaketabstützungsvorrichtung is facilitated on a winding machine. Accordingly, the setting and monitoring effort for the winding machine is reduced, so that the complexity of production is simplified. Furthermore, the one-piece design of the Fadenpaketabstützungsvorrichtung allows the use of simple and thus more cost-effective holding devices and tools during the process steps. This results in a reduced machine investment and thus lower article-specific costs. As a result, economical production is possible even with small quantities. In addition, only a small amount of elastomer is required for the jacket. In addition, the number of cavities in the injection mold can be increased form, since the one-piece design allows improved utilization of the injection mold surface. Due to the lower amount of elastomer, the buoyancy surface in the injection molding tool and, concomitantly, the buoyancy force is reduced. In addition, no functionally irrelevant elastomer is present, so that the heating time can be shortened.

According to a further aspect, a method for producing an elastic joint disc for connecting two shaft sections is proposed, which comprises the following method steps. First, a plurality of Fadenpaketabstützungsvorrichtungen is provided, wherein each Fadenpaketabstützungsvorrichtung has two deflection sections and the two deflecting sections integrally interconnecting web, and wherein each deflection portion has a through hole for pressing a socket. Subsequently, each of the Fadenpaketabstützungsvorrichtungen is wrapped with a thread to produce a thread package on each of the Fadenpaketabstützungsvorrichtungen. Thereafter, each of the Fadenpaketabstützungsvorrichtungen is partially encased with an elastomeric body. Finally, wrapped with an elastomeric body Fadenpaketabstützungsvorrichtungen are connected by means of a plurality of sockets to a flexible disc by a respective bushing is pressed into the through holes of two Fadenpaketabstützungsvorrichtungen.

According to a further aspect, a method for producing an elastic joint disc for connecting two shaft sections is proposed, which comprises the following method steps. First, a plurality of Fadenpaketabstützungsvorrichtungen is provided, wherein each Fadenpaketabstützungsvorrichtung has two deflection sections and a two deflection portions integrally interconnecting web, and wherein each deflection portion has a through hole for pressing a socket. Subsequently, each of the Fadenpaketabstützungsvorrichtungen is wrapped with a thread to produce a thread package on each of the Fadenpaketabstützungsvorrichtungen. Thereafter, the Fadenpaketabstützungsvorrichtungen be connected by means of a plurality of sockets to a joint disc main body by a respective bushing is pressed into the through holes of two Fadenpaketabstützungsvorrichtungen. Finally, each of the Fadenpaketabstützungsvorrichtungen is partially encased with an elastomeric body.

In an advantageous embodiment of the web is separated from the Umlenkabschnitten after each of Fadenpaketabstützungsvorrichtungen has been partially covered with an elastomeric body.

In an advantageous embodiment, the Fadenpaketabstützungsvorrichtungen be coated with a thread before wrapping each Fadenpaketabstützungsvorrichtung.

• 1 eine perspektivische Ansicht einer elastischen Gelenkscheibe;
• 2 eine perspektivische Ansicht einer Fadenpaketabstützungsvorrichtung;
• 3 eine Draufsicht auf die in 2 gezeigte Fadenpaketabstützungsvorrichtung;
• 4 eine Seitenansicht der in 2 gezeigten Fadenpaketabstützungsvorrichtung;
• 5 eine perspektivische Darstellung der in 2 gezeigten Fadenpaketabstützungsvorrichtung mit einem Fadenpaket;
• 6 eine perspektivische Ansicht der in 5 gezeigten Fadenpaketabstützungsvorrichtung mit einem Elastomerkörper; und
• 7 eine perspektivische Ansicht der in 6 gezeigten Fadenpaketabstützungsvorrichtung mit einem abgetrennten Steg.

Hereinafter, the Fadenpaketabstützungsvorrichtung, the joint disc, the method for producing a flexible disc and other features and advantages using an exemplary embodiment will be explained in more detail, which is shown schematically in the figures. Hereby show:

• 1 a perspective view of an elastic joint disc;
• 2 a perspective view of a Fadenpaketabstützungsvorrichtung;
• 3 a top view of the in 2 shown Fadenpaketabstützungsvorrichtung;
• 4 a side view of in 2 shown Fadenpaketabstützungsvorrichtung;
• 5 a perspective view of in 2 shown Fadenpaketabungsvorrichtung device with a thread package;
• 6 a perspective view of in 5 shown Fadenpaketabstützungsvorrichtung with an elastomeric body; and
• 7 a perspective view of in 6 shown Fadenpaketabungsvorrichtung device with a severed web.

In 1 is an elastic joint disc 10 shown, which serves for connecting two unillustrated shaft portions of a propeller shaft of a motor vehicle.

The flexible disc 10 has a plurality of Fadenpaketabstützungsvorrichtungen 12 partially made of an elastomeric body 14 are jacketed, and a plurality of jacks 16 on, each two Fadenpaketabstützungsvorrichtungen 12 connect with each other.

As in the 2 to 4 it can be seen has the Fadenpaketabstützungsvorrichtung 12 a first deflection section 18 and a second deflecting section 20 up, over a jetty 22 are integrally connected to each other. The Fadenpaketabstützungsvorrichtung 12 is integrally injection molded from a plastic, in particular a fiber-reinforced plastic produced.

Each of the deflection sections 18 . 20 includes an arcuate thread guide area 19 , two tangential thread guide areas 21 , a passage opening 24 for pressing a portion of a socket 16 and a bead portion 26 to the footbridge 22 is connected. Furthermore, each of the deflection sections 18 . 20 two opposing collar sections 28a . 28b on, the radially outward of the Umlenkabschnitten 18 . 20 protrude and between them a leadership area 30 define.

According to 5 becomes the Fadenpaketabstützungsvorrichtung 12 with a thread 32 wrapped around a thread package 34 to produce, with the thread package 34 within through the collar sections 28a . 28b defined management area 30 is guided. The two collar sections 28a . 28b thus prevent slippage of the thread package 34 from the Fadenpaketabstützungsvorrichtung 12 ,

The thread package 34 has two opposite arcuate thread areas 36 and two the arcuate thread areas 36 interconnecting and parallel tangential thread areas 38 on. The arcuate thread area 36 is about the arcuate thread guide area 19 guided and in each case a section of one of the tangential thread areas 38 is located at one of the tangential thread guide areas 21 at.

As in particular in the 4 and 5 can be seen, widening in the tangential thread guide areas 21 a distance a between the opposite collar sections 28a . 28b steadily. In particular, the two collar sections form 28a . 28b a funnel-shaped opening angle for the tangential thread area 38 ,

In the arcuate thread guide areas 19 is the distance a the collar sections 28a . 28b constant. As a result, the free thread length in the arcuate thread area 36 elevated.

The jetty 22 has one in comparison to the two bead sections 26 smaller axial extent and is of the two bead sections 26 separable, in particular punched out. The separation or punching of the web 22 occurs when the Fadenpaketabstützungsvorrichtung 12 partly from the elastomeric body 14 is sheathed. In 7 is a Fadenpaketabstützungsvorrichtung 12 with separate bridge 22 shown.

To disconnect the bridge 22 have the bead sections 26 a support area 40 for supporting the Fadenpaketabstützungsvorrichtung 12 on. The Fadenpaketabstützungsvorrichtung 12 is for this purpose introduced into a punching device, not shown, such that the Fadenpaketabstützungsvorrichtung 12 on her pad area 40 supported.

By separating the web 22 let the two deflection sections 18 . 20 move relative to each other. Due to the funnel-shaped opening angle can high bending angles, especially in the region of the tangential thread areas 38 , will be realized. In addition, the bead portions act 26 with separate bridge 22 as attacks 42 with strong deflection movements. About the shape of the bead sections 26 the deflection movement can be adjusted.

The following is a possible method for producing the flexible disc 10 explained. For this purpose, first six Fadenpaketabstützungsvorrichtungen 12 provided and pretreated, in particular coated. Thereafter, each Fadenpaketabstützungsvorrichtung 12 is used separately in a winding machine, not shown. Subsequently, each Fadenpaketabstützungsvorrichtung 12 with a thread 32 wrapped in the winding machine to a thread package 34 to generate, as in 5 is shown. Subsequently, the Fadenpaketabstützungsvorrichtungen 12 including thread package 34 placed in a vulcanization mold and partially encapsulated with an elastomeric material and then vulcanized to the elastomeric body 14 to generate, as in 6 is shown. After that, the partially with the elastomeric body 14 sheathed thread package support devices 12 cooled. Subsequently, the jetty 22 separated, in particular punched out. For this purpose, the Fadenpaketabstützungsvorrichtung 12 inserted in a punching device, not shown, such that the Fadenpaketabstützungsvorrichtungen 12 on their pads 40 support. Thereafter, the Fadenpaketabstützungsvorrichtungen be positioned as shown in 1 is shown, so that the through holes 24 two superimposed Fadenpaketabstützungsvorrichtungen 12 aligned. Finally, the jacks 16 in the through holes 24 pressed in to the thread package support devices 12 together to the flexible disc 10 connect to.

Furthermore, the above-described method for producing the rubber washer disc can also be modified to the effect that with the thread package 34 wrapped thread package support devices 12 first by means of the sockets 16 are connected to a joint disc main body, and then the Gelenkscheibengrundkörper is placed in a vulcanization mold to the individual Fadenpaketabstützungsvorrichtungen 12 partly with the elastomeric body 14 to coat. Finally, the bridges will be 22 separated, in particular punched out.

LIST OF REFERENCE NUMBERS

10

Flexible coupling

12

Yarn package support device

14

elastomer body

16

Rifle

18

first deflection section

19

arcuate thread guide area

20

second deflection section

21

tangential thread guide area

22

web

24

Through opening

26

bead

28a

collar section

28b

collar section

30

guide region

32

thread

34

thread package

36

arcuate thread area

38

tangential thread area

40

support area

42

attack

a

distance

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008047596 A1 [0005]
• DE 102011121472 A1 [0006]

Claims (15)

Fadenpaketabstützungsvorrichtung (12) for supporting a with a thread (32) wound thread package (34) for an elastic joint disc (10) for connecting two shaft sections, wherein the thread package (34) has two opposite arcuate thread portions (36) and two of the arcuate thread portions (36 ) and tangential thread areas (38) connecting to each other, wherein the Fadenpaketabstützungsvorrichtung (12) has a first deflecting portion (18) and a second deflecting portion (20) about which a respective arcuate thread portion (36) of the thread package (34) is guided , Wherein the two deflection sections (18, 20) are integrally connected to one another via a web (22). Fadenpaketabstützungsvorrichtung (12) according to Claim 1 , characterized in that the web (22) is separable from the deflection sections (18, 20). Fadenpaketabstützungsvorrichtung (12) according to Claim 2 , characterized in that each of the deflection sections (18, 20) has at least one support area (40) for supporting the Fadenpaketabstützungsvorrichtung (12) for separating the web (22). Fadenpaketabstützungsvorrichtung (12) according to any one of the preceding claims, characterized in that each of the deflection sections (18, 20) has two opposite collar portions (28a, 28b) which receive the thread package (34) between them and axially supported. Fadenpaketabstützungsvorrichtung (12) according to Claim 4 , characterized in that a distance between the opposite collar portions (28a, 28b) widens steadily in the region of a tangential thread guide. Fadenpaketabstützungsvorrichtung according to any one of the preceding claims, characterized in that each deflecting section (18, 20) an arcuate thread guide region (19) about which an arcuate thread portion (36) is guided, and two tangential thread guide portions (21), wherein each of the tangential thread guide portions (21) guides a portion of a tangential thread portion (38). Fadenpaketabstützungsvorrichtung (12) according to any one of the preceding claims, characterized in that each of the deflection sections (18, 20) has a through hole (24) for pressing a bushing (16) and a bead portion (26) for connecting the web (22). Fadenpaketabstützungsvorrichtung (12) according to any one of the preceding claims, characterized by an elastomeric body (14) which surrounds the Fadenpaketabstützungsvorrichtung (12) partially. Fadenpaketabstützungsvorrichtung (12) according to any one of the preceding claims, characterized in that the deflection sections (18, 20) and the web (22) are integrally formed by injection molding. Fadenpaketabstützungsvorrichtung (12) according to any one of the preceding claims, characterized in that the two deflection sections (18, 20) and the web (22) made of a plastic, in particular a fiber-reinforced plastic, are produced. An elastic joint disc (10) for connecting two shaft sections comprising a plurality of Fadenpaketabstützungsvorrichtungen (12) according to one of Claims 1 to 10 , a plurality of thread packages (34) and a plurality of bushes (16), wherein in each case a thread package (34) wraps around a Fadenpaketabstützungsvorrichtung (12), each with a thread package (34) looped Fadenpaketabstützungsvorrichtung (12) at least partially by an elastomeric body ( 14) is jacketed, and wherein in each case a bushing (16) two Fadenpaketabstützungsvorrichtungen (12) interconnects. Method for producing an elastic joint disc (10) for connecting two shaft sections, comprising the following method steps: a. Providing a plurality of thread package support devices (12), each thread package support device (12) having two deflection sections (18, 20) and a web (22) integrally connecting the two deflection sections (18, 20), and wherein each deflection section (18, 20) a through hole (24) for pressing in a bushing (16); b. Wrapping each of the thread package support devices (12) with a thread (32) to produce a thread package (34) on each of the thread package support devices (12); c. Partially sheathing each of the thread package support devices (12) with an elastomeric body (14); and d. Connecting the Fadenpaketabstützungsvorrichtungen (12) partially encased with an elastomer body (14) by means of a plurality of bushes (16) to a flexible disc (10) by a respective bushing (16) in the through holes (24) of two Fadenpaketabstützungsvorrichtungen (12) is pressed. Method for producing an elastic joint disc (10) for connecting two shaft sections, comprising the following method steps: a. Providing a plurality of thread package support devices (12), each thread package support device (12) having two deflection sections (18, 20) and a web (22) integrally connecting the two deflection sections (18, 20), and wherein each deflection section (18, 20) a through hole (24) for pressing in a bushing (16); b. Wrapping each of the thread package support devices (12) with a thread (32) to produce a thread package (34) on each of the thread package support devices (12); c. Connecting the Fadenpaketabstützungsvorrichtungen (12) by means of a plurality of sockets (16) to a Gelenkscheibengrundkörper by each a bush (16) in the through holes (24) of two Fadenpaketabstützungsvorrichtungen (12) is pressed; and d. Partially sheathing each of the Fadenpaketabstützungsvorrichtungen (12) with an elastomeric body (14). Method according to Claim 12 or 13 characterized in that the web (22) is separated from the turnaround portions (18, 20) after each of the thread package support devices (12) has been partially encased with an elastomeric body (14). Method according to one of Claims 12 to 14 , characterized in that prior to step b) the Fadenpaketabstützungsvorrichtungen (12) are coated.

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